CN113953366A - Stamping device for metal plate processing and stamping method thereof - Google Patents
Stamping device for metal plate processing and stamping method thereof Download PDFInfo
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- CN113953366A CN113953366A CN202111282993.2A CN202111282993A CN113953366A CN 113953366 A CN113953366 A CN 113953366A CN 202111282993 A CN202111282993 A CN 202111282993A CN 113953366 A CN113953366 A CN 113953366A
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- plate
- die
- male die
- metal plate
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention provides a stamping device and a stamping method for metal plate processing, and relates to the technical field of metal plate processing. The stamping device for processing the metal plate comprises: the top plate is arranged above the base and is fixedly connected with the base through two mutually symmetrical upright posts; the mounting plate is connected with one of the upright posts in a sliding manner and is positioned between the two upright posts; further comprising: the female die mechanism is connected with the base and is positioned between the two stand columns; the connecting mechanism is connected with the upper surface of the mounting plate; the rotary table mechanism is connected with the top plate, the output end of the rotary table mechanism is connected with the connecting mechanism, and the time delay lifting of the mounting plate is achieved through the opening and closing of the connecting mechanism. The stamping device for processing the metal plate has the advantage of improving the stamping quality of the metal plate.
Description
Technical Field
The invention relates to the technical field of metal plate processing, in particular to a stamping device for metal plate processing and a stamping method thereof.
Background
The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size.
The springback is reverse elastic deformation generated in the unloading process, and the springback phenomenon is particularly serious in the bending and deep drawing processes, so that the size precision, the production efficiency and the economic benefit of parts are greatly influenced.
At present, when a metal plate is punched and bent, a common male die impacts a female die at a single time, and the metal plate is bent and punched through the single impact.
However, in the process of implementing the technical solution in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
because the terrace die impacts the die once, make the metal sheet after carrying out bending punching press processing, its inside residual stress is great, the metal sheet is after carrying out bending punching press processing, the volume of kick-backing is great, thereby influence the quality of metal sheet punching press processing.
Therefore, it is necessary to provide a new press apparatus for processing a metal plate to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above-described problems, the present invention provides a metal plate processing press apparatus that improves the press quality of a metal plate.
The invention provides a stamping device for processing a metal plate, which comprises: the top plate is arranged above the base and is fixedly connected with the base through two mutually symmetrical upright posts; the mounting plate is connected with one of the upright posts in a sliding manner and is positioned between the two upright posts; further comprising: the female die mechanism is connected with the base and is positioned between the two stand columns; the connecting mechanism is connected with the upper surface of the mounting plate; the rotating disc mechanism is connected with the top plate, and the output end of the rotating disc mechanism is connected with the connecting mechanism; the male die mechanism is connected with the lower surface of the mounting plate and is located right above the female die mechanism.
Preferably, the connecting mechanism comprises a connecting column, the upper surface of the mounting plate is fixedly connected with the lower end of the connecting column, and the upper end of the connecting column is fixedly connected with a U-shaped plate with an upward opening; a movable plate for plugging an opening at the upper end of the U-shaped plate is arranged above the U-shaped plate, and a first electromagnet for adsorbing the movable plate is arranged on the upper surface of a vertical section in the U-shaped plate; the outer surface of the vertical section in the U-shaped plate is fixedly connected with a limiting column, and the limiting column penetrates through the movable plate and is connected with the movable plate in a sliding manner; the upper end of the limiting column is fixedly connected with a fixed plate, and the fixed plate is elastically connected with the movable plate through a spring; one of the upright posts is provided with a control switch for controlling the first electromagnetic property.
Preferably, the turntable mechanism comprises a motor, the lower surface of the top plate is connected with the motor through a connecting plate, and the output end of the motor is fixedly connected with the rotation center of the turntable; the face of carousel and the motor back of the body face fixedly connected with lug, the lug is close to the edge setting of carousel, and the lug is inserted and is established in the motion frame of constituteing by U template and fly leaf.
Preferably, the male die mechanism comprises a male die, the lower surface of the mounting plate is fixedly connected with the male die, a mounting groove is formed in the male die, and a strip-shaped opening communicated with the mounting groove is formed in the side surface of the male die; the upper surface of the impact block is connected with the inner wall of the upper end of the mounting groove through a first pressure spring, and a slot is formed in the surface of the impact block, which is opposite to the strip-shaped opening; the upright column opposite to the strip-shaped opening is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with an inserted rod matched with the slot; two travel switches which are arranged up and down and are used for controlling the hydraulic cylinder to stretch are arranged on the upright post.
Preferably, the male die mechanism further comprises a second electromagnet, the mounting groove is fixedly connected with the second electromagnet which is annular and used for adsorbing the impact block, and the second electromagnet is positioned above the impact block; and the upper surface of the impact block is fixedly connected with a permanent magnet.
Preferably, the terrace die mechanism still includes the ball, the surface mounting of inserted bar has a plurality of evenly distributed's ball, and the slot is flaring structure.
Preferably, the die mechanism comprises a die, the die is arranged above the base, the opening of the die is upward and matched with the male die, the die is located under the male die, and the die is elastically connected with the base through a plate spring.
Preferably, the die mechanism still includes the stripper plate, sliding connection has the stripper plate that two symmetries set up in the die, and the face that two stripper plates back to the back all is through the interior wall connection of second pressure spring with the die, and the top of two stripper plates all rotates and is connected with the gyro wheel, when the terrace die entered into the die, promotes the gyro wheel through the terrace die and moves.
A stamping method of a stamping device for processing metal plates comprises the stamping device for processing metal plates, and comprises the following specific steps:
a. a metal plate to be stamped is placed above the female die, and is restrained and fixed through an external clamping piece;
b. the motor works to enable the lug to rotate, the lug pushes a moving frame consisting of the movable plate and the U-shaped plate, and the mounting plate moves in the vertical direction under the action of the connecting column; when the mounting plate moves downwards, the male die is driven to synchronously move downwards, so that the male die enters the female die, and the metal plate is punched through the female die and the male die; the inserting rod is inserted into the inserting groove, so that when the male die moves downwards, the impact block is restrained, the impact block moves relative to the male die, and the first pressure spring is extruded at the moment, so that a gap is formed between the lower surface of the impact block and the inner bottom wall of the male die;
c. when the mounting plate moves to the lowest position, the hydraulic cylinder is contracted through the control switch, the inserted rod slides out of the slot, and the impact block impacts the male die under the action of the elastic restoring force of the first pressure spring, so that secondary impact on the metal plate is realized; in an initial state, a certain distance is reserved between the U-shaped plate and the control switch, and the first electromagnet is normally electrified, so that the movable plate is adsorbed and fixed by the first electromagnet; when the mounting panel moved the below, U template extrusion control switch for first electro-magnet outage, the fly leaf no longer adsorbed by first electro-magnet, make the fly leaf for U template upward movement, realize the mounting panel time delay and promote, and then realize the time delay promotion to the terrace die, when avoiding strikeing the metal sheet secondary, the terrace die had promoted the top, guarantees when carrying out the secondary to the metal sheet and strikeing, and the motor need not shut down.
Compared with the related art, the stamping device for processing the metal plate provided by the invention has the following beneficial effects:
1. when the metal plate punching machine is used, the hydraulic cylinder can be contracted through the travel switch, the inserted rod can slide out of the slot, the impact block impacts the male die under the action of the elastic restoring force of the first pressure spring, so that secondary impact on the metal plate is realized, the residual stress in the metal plate can be eliminated to a certain extent through the secondary impact, the rebound quantity of the metal plate after punching is reduced, and the punching quality of the metal plate is improved;
2. when the device is used, the mounting plate can be lifted in a delayed manner, so that the male die can be lifted in a delayed manner, when the male die is impacted by the impact block, the motor can work normally, the male die cannot be lifted from the female die, and the secondary stamping effect on a metal plate is ensured;
3. the second electromagnet can adsorb the impact block, so that the impact block can be stably positioned in the mounting groove, and the impact block is positioned, so that the insertion rod can enter the slot again;
4. when the hydraulic cylinder is used, the current direction passing through the second electromagnet is intermittently adjusted, and when the hydraulic cylinder contracts, repulsion force is generated between the second electromagnet and the permanent magnet, so that the movement speed of the impact block is increased, the impact force between the impact block and the male die is improved, the strength of secondary impact is ensured, and the residual stress in the metal plate is favorably eliminated; because the current direction passing through the second electromagnet is adjusted intermittently, attraction force and repulsion force are alternately generated between the second electromagnet and the permanent magnet in the time period of the delayed lifting of the male die; when attraction is generated between the second electromagnet and the permanent magnet, the first pressure spring is extruded through magnetic attraction, the impact block is lifted at the moment, and when repulsion is generated between the second electromagnet and the permanent magnet, the impact block impacts the male die under the action of elastic restoring force of the first pressure spring and repulsion between the second electromagnet and the permanent magnet, so that the impact block can impact the male die for multiple times in the time period of delayed lifting of the male die, multiple impact on the metal plate is realized, the elimination of residual stress in the metal plate is further facilitated, the rebound amount of the metal plate after stamping is reduced, and the stamping quality of the metal plate is further improved;
5. according to the invention, part of impact energy can be absorbed through the second pressure spring, so that the direct rigid impact of the male die with the metal plate and the female die is avoided, and the service life of the device is prolonged; after the male die impacts, the male die slides out of the female die, the two extrusion plates move in the opposite direction under the action of the elastic restoring force of the second pressure spring, the metal plate can be longitudinally extruded through the two extrusion plates, namely, the end of the punched metal plate is longitudinally pressurized, the cross section of the bending deformation area of the metal plate is subjected to compressive stress, the rebound trends of the inner side and the outer side of the metal plate are opposite during unloading, the rebound amount of the metal plate is greatly reduced, and the punching quality of the metal plate is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a stamping device for processing a metal plate according to a preferred embodiment of the present invention;
FIG. 2 is a schematic rear view of the press apparatus for processing a metal plate shown in FIG. 1;
FIG. 3 is a schematic structural view of the die mechanism shown in FIG. 1;
FIG. 4 is a schematic structural view of the turntable mechanism shown in FIG. 1;
FIG. 5 is a schematic structural view of the punch mechanism shown in FIG. 1;
FIG. 6 is a schematic cross-sectional view of the punch mechanism shown in FIG. 5;
fig. 7 is a schematic view of the mounting structure of the hydraulic cylinder in the punch mechanism shown in fig. 6;
FIG. 8 is a schematic cross-sectional view of an impact block of the punch mechanism shown in FIG. 1;
fig. 9 is a schematic structural view of the connection mechanism shown in fig. 1.
Reference numbers in the figures: 1. a top plate; 2. a travel switch; 3. a column; 4. a base; 5. a female die mechanism; 51. a second pressure spring; 52. a female die; 53. a pressing plate; 54. a roller; 55. a plate spring; 6. a turntable mechanism; 61. a turntable; 62. a bump; 63. a connecting plate; 64. an electric motor; 7. mounting a plate; 8. a male die mechanism; 81. a male die; 82. a strip-shaped opening; 83. a hydraulic cylinder; 84. a second electromagnet; 85. a permanent magnet; 86. an impact block; 87. a slot; 88. a first pressure spring; 89. a ball bearing; 9. a connecting mechanism; 91. a fixing plate; 92. a spring; 93. a movable plate; 94. a U-shaped plate; 95. connecting columns; 96. a first electromagnet; 97. a limiting column; 9a and a control switch.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1 to 9, a stamping apparatus for processing a metal plate includes: the device comprises a base 4, wherein a top plate 1 is arranged above the base 4, and the top plate 1 is fixedly connected with the base 4 through two mutually symmetrical upright posts 3; the mounting plate 7 is connected with one upright post 3 in a sliding mode, and the mounting plate 7 is located between the two upright posts 3; further comprising: the female die mechanism 5 is connected with the base 4, and the female die mechanism 5 is positioned between the two stand columns 3; the connecting mechanism 9, the said connecting mechanism 9 is connected with upper surface of the mounting plate 7; the rotating disc mechanism 6 is connected with the top plate 1, and the output end of the rotating disc mechanism 6 is connected with the connecting mechanism 9; and the male die mechanism 8 is connected with the lower surface of the mounting plate 7, and the male die mechanism 8 is positioned right above the female die mechanism 5.
Need to explain: when the device is used, a metal plate to be stamped is placed above the female die mechanism 5, and the metal plate is restrained and fixed through an external clamping workpiece; the connecting mechanism 9 is driven to move through the turntable mechanism 6, the mounting plate 7 is driven to move in the vertical direction under the action of the connecting mechanism 9, the male die mechanism 8 is driven to move in the vertical direction, and when the male die mechanism 8 moves downwards, the male die mechanism 8 and the female die mechanism 5 are matched for use, so that the metal plate is punched;
it is also stated that: when the mounting plate 7 moves to the lowest position, the connecting mechanism 9 is opened at the moment, so that the turntable mechanism 6 carries out delayed lifting on the connecting mechanism 9, and further delayed lifting on the male die mechanism 8 is realized; when the mounting plate 7 moves to the lowest part, a secondary impact part in the male die mechanism 8 carries out secondary impact on the metal plate, so that when the male die mechanism 8 carries out secondary impact on the metal plate, the male die mechanism 8 is stably positioned in the female die mechanism 5, and the impact effect on the metal plate is ensured; through twice impacts on the metal plate, the residual stress in the metal plate can be eliminated to a certain degree, and the rebound quantity of the metal plate after stamping is reduced, so that the stamping quality of the metal plate is improved; and because the male die mechanism 8 can be delayed and lifted, the turntable mechanism 6 does not need to be stopped, the repeated starting and stopping processes of the turntable mechanism 6 are avoided, the stamping efficiency of the device is improved, and meanwhile, the service life of the turntable mechanism 6 is prolonged.
Referring to fig. 1 and 3, the die mechanism 5 includes a die 52, the die 52 having an upward opening and matching with the punch 81 is disposed above the base 4, the die 52 is located right below the punch 81, and the die 52 is elastically connected to the base 4 through a plate spring 55.
Need to explain: a metal plate to be stamped is placed on the die 52, and a certain buffering effect can be achieved through the plate spring 55.
Referring to fig. 1 and 4, the turntable mechanism 6 includes a motor 64, the lower surface of the top plate 1 is connected with the motor 64 through a connecting plate 63, and the output end of the motor 64 is fixedly connected with the rotation center of the turntable 61; the lug 62 is fixedly connected to the surface of the turntable 61 opposite to the motor 64, the lug 62 is arranged near the edge of the turntable 61, and the lug 62 is inserted in a moving frame composed of a U-shaped plate 94 and a moving plate 93.
Need to explain: the turntable 61 and the projection 62 are rotated synchronously by the operation of the motor 64, and the projection 62 is adjusted in height when rotated because the projection 62 is disposed near the edge of the turntable 61, that is, the projection 62 is disposed eccentrically.
Referring to fig. 1, 2 and 9, the connecting mechanism 9 includes a connecting column 95, the upper surface of the mounting plate 7 is fixedly connected to the lower end of the connecting column 95, and the upper end of the connecting column 95 is fixedly connected to a U-shaped plate 94 with an upward opening; a movable plate 93 for plugging an opening at the upper end of the U-shaped plate 94 is arranged above the U-shaped plate 94, and a first electromagnet 96 for adsorbing the movable plate 93 is arranged on the upper surface of a vertical section in the U-shaped plate 94; the outer surface of the vertical section in the U-shaped plate 94 is fixedly connected with a limiting column 97, and the limiting column 97 penetrates through the movable plate 93 and is connected with the movable plate 93 in a sliding manner; the upper end of the limiting column 97 is fixedly connected with a fixed plate 91, and the fixed plate 91 is elastically connected with a movable plate 93 through a spring 92; a control switch 9a for controlling the magnetism of the first electromagnet 96 is installed on one of the upright posts 3.
Need to explain: since the projection 62 is inserted into the moving frame formed by the movable plate 93 and the U-shaped plate 94, when the projection 62 is adjusting its height, the whole moving frame and the mounting plate 7 can be driven to reciprocate in the vertical direction, when the U-shaped plate 94 moves to the lowest part, the mounting plate 7 also moves to the lowest part at the moment, the U-shaped plate 94 extrudes the control switch 9a, the first electromagnet 96 is de-energized for a period of time by controlling the switch 9a, at which time the movable plate 93 is no longer attracted by the first electromagnet 96, at which time the movable plate 93 can move relative to the U-shaped plate 94, and the yield strength of the spring 92 is small, when the cam 62 continues to move upward, the spring 92 is pressed, the movable plate 93 moves upward relative to the U-shaped plate 94, and at this time, the U-shaped plate 94 is not lifted by the movement of the cam 62, thereby realizing the delayed lifting of the U-shaped plate 94 and further realizing the delayed lifting of the mounting plate 7;
it is also stated that: after the first electromagnet 96 is powered off for a period of time, the first electromagnet 96 is automatically powered on again, the movable plate 93 can be adsorbed by the first electromagnet 96, the movable plate 93 and the U-shaped plate 94 are fixed together through magnetic force, and at the moment, when the lug 62 moves, the U-shaped plate 94 can be re-driven, so that the mounting plate 7 and the male die mechanism 8 are re-driven.
Referring to fig. 1, 5 and 6, the male die mechanism 8 includes a male die 81, the male die 81 is fixedly connected to the lower surface of the mounting plate 7, a mounting groove is formed inside the male die 81, and a strip-shaped opening 82 communicated with the mounting groove is formed in a side surface of the male die 81; an impact block 86 is connected in the mounting groove in a sliding mode, the upper surface of the impact block 86 is connected with the inner wall of the upper end of the mounting groove through a first pressure spring 88, and a slot 87 is formed in the surface, opposite to the strip-shaped opening 82, of the impact block 86; the upright post 3 opposite to the strip-shaped opening 82 is fixedly connected with a hydraulic cylinder 83, and the output end of the hydraulic cylinder 83 is fixedly connected with an inserted rod matched with the slot 87; two travel switches 2 which are arranged up and down and are used for controlling the hydraulic cylinder 83 to stretch and retract are arranged on the upright post 3.
Need to explain: the mounting plate 7 moves in the vertical direction to drive the male die 81 to move in the vertical direction, when the male die 81 moves downwards, the male die 81 can enter the female die 52, and the metal plate can be punched through the female die 52 and the male die 81;
it is also stated that: when the male die 81 moves downwards, the insert rod is inserted into the slot 87, the first pressure spring 88 is extruded along with the movement of the male die 81, at the moment, a gap is generated between the lower surface of the impact block 86 and the inner bottom wall of the male die 81, when the male die 81 moves to the lowest part, the mounting plate 7 is close to the travel switch 2 located at the lowest part, the travel switch 2 is a proximity switch, the hydraulic cylinder 83 can be contracted through the travel switch 2, the insert rod slides out of the slot 87, the impact block 86 impacts the male die 81 under the action of the elastic restoring force of the first pressure spring 88, so that the second impact on the metal plate is realized, through the second impact, the residual stress in the metal plate can be eliminated to a certain extent, the rebound amount of the metal plate after stamping is reduced, and the stamping quality of the metal plate is improved; when the mounting plate 7 approaches the upper position of the travel switch 2, the external controller is caused by the upper position of the travel switch 2 to extend the hydraulic cylinder 83, so that the insert rod enters the slot 87 again;
it is also stated that: because can carry out the time delay promotion to mounting panel 7 to the realization is promoted the time delay of terrace die 81, when impact piece 86 impact terrace die 81, motor 64 can normally work, and terrace die 81 also can not promote from die 52 this moment, thereby guarantees the secondary punching press effect to the metal sheet, and simultaneously, motor 64 need not shut down, avoids motor 64 to start repeatedly, the shut-down flow, improves the punching press efficiency of device, and simultaneously, the improvement is motor 64 and whole carousel mechanism 6's life.
Referring to fig. 6, the punch mechanism 8 further includes a second electromagnet 84, the second electromagnet 84 which is annular and is used for adsorbing the impact block 86 is fixedly connected in the installation groove, and the second electromagnet 84 is located above the impact block 86; the first pressure spring 88 penetrates through the second electromagnet 84; the upper surface of the impact block 86 is fixedly connected with a permanent magnet 85.
Need to explain: the second electromagnet 84 can adsorb the impact block 86, so that the impact block 86 can be stably positioned in the mounting groove, and the impact block 86 is positioned at the same time, thereby facilitating the insertion rod to enter the slot 87 again;
it is also stated that: when the mounting plate 7 and the male die 81 move to the lowest part, the current direction passing through the second electromagnet 84 is intermittently adjusted through the travel switch 2 positioned at the lowest part, and when the hydraulic cylinder 83 contracts, repulsion force is generated between the second electromagnet 84 and the permanent magnet 85, so that the movement speed of the impact block 86 is increased, the impact force between the impact block 86 and the male die 81 is improved, the force of the second impact is ensured, and the residual stress in the metal plate is favorably eliminated; since the direction of the current passing through the second electromagnet 84 is intermittently adjusted, the attraction force and the repulsion force are alternately generated between the second electromagnet 84 and the permanent magnet 85 during the time period during which the male die 81 is lifted with a delay; when attraction is generated between the second electromagnet 84 and the permanent magnet 85, the first pressure spring 88 is extruded through magnetic attraction, and the impact block 86 is lifted at the moment, when repulsion is generated between the second electromagnet 84 and the permanent magnet 85, the impact block 86 impacts the male die 81 under the elastic restoring force of the first pressure spring 88 and the repulsion between the second electromagnet 84 and the permanent magnet 85, so that the impact block 86 can impact the male die 81 for multiple times in the time period of delayed lifting of the male die 81, multiple impacts on the metal plate are realized, the residual stress in the metal plate is further favorably eliminated, the rebound amount of the metal plate after stamping is reduced, and the stamping quality of the metal plate is further improved;
it is also stated that: when the mounting plate 7 is no longer close to 1-3s behind the lowest travel switch 2, the current direction of the second electromagnet 84 is restored, so that attraction force is generated between the second electromagnet 84 and the permanent magnet 85;
it is also stated that: the time of the delayed lifting of the male die 81 is 5-6s, and the interval between the attraction force and the repulsion force alternately generated between the second electromagnet 84 and the permanent magnet 85 is 0.8-1.2s, so that the impact block 86 can impact the male die 81 for multiple times within 5-6s of the delayed lifting of the male die 81.
Referring to fig. 5, 7 and 8, the male die mechanism 8 further comprises a ball 89, the outer surface of the insert rod is provided with a plurality of evenly distributed balls 89, and the insertion groove 87 is in a flaring structure.
Need to explain: the ball 89 can facilitate the insertion rod to enter and exit the slot 87, so that the use reliability of the device is improved, and meanwhile, the slot 87 is of a flaring structure, so that the insertion rod can enter and exit the slot 87, and the use reliability of the device is further improved.
Referring to fig. 3, the female die mechanism 5 further includes an extrusion plate 53, two extrusion plates 53 symmetrically arranged are slidably connected in the female die 52, the opposite surfaces of the two extrusion plates 53 are connected with the inner wall of the female die 52 through a second pressure spring 51, the tops of the two extrusion plates 53 are rotatably connected with a roller 54, and when the male die 81 enters the female die 52, the roller 54 is pushed to move through the male die 81.
Need to explain: when the male die 81 enters the female die 52, the male die 81 is in contact with the roller 54 and pushes the roller 54 to move, at the moment, the second pressure spring 51 is elastically deformed, part of impact energy can be absorbed through the second pressure spring 51, the male die 81 is prevented from directly impacting the metal plate and the female die 52 rigidly, and the service life of the device is prolonged;
it is also stated that: after the male die 81 impacts, the male die slides out of the female die 52, under the action of the elastic restoring force of the second pressure spring 51, the two extrusion plates 53 move oppositely, the metal plate can be extruded longitudinally through the two extrusion plates 53, namely, the end part of the punched metal plate is longitudinally pressurized, so that the cross section of the bending deformation area of the metal plate is subjected to compressive stress, the rebound tendency of the inner side and the outer side of the metal plate is opposite during unloading, the rebound amount of the metal plate is greatly reduced, and the punching quality of the metal plate is further improved.
A stamping method of a stamping device for processing a metal plate comprises the stamping device for processing the metal plate, and comprises the following specific steps:
a. a metal plate to be stamped is placed above the female die 52, and is restrained and fixed through an external clamping piece;
b. the motor 64 works to enable the lug 62 to rotate, the lug 62 pushes the moving frame consisting of the moving plate 93 and the U-shaped plate 94, and the mounting plate 7 moves in the vertical direction under the action of the connecting column 95; when the mounting plate 7 moves downwards, the male die 81 is driven to synchronously move downwards, so that the male die 81 enters the female die 52, and the metal plate is punched through the female die 52 and the male die 81; as the insert rod is inserted into the insert slot 87, when the male die 81 moves downwards, the impact block 86 is restrained, the impact block 86 moves relative to the male die 81, and at the moment, the first compression spring 88 is compressed, so that a gap is generated between the lower surface of the impact block 86 and the inner bottom wall of the male die 81;
c. when the mounting plate 7 moves to the lowest position, at the moment, the hydraulic cylinder 83 is contracted through the control switch 9a, the insert rod slides out of the slot 87, and the impact block 86 impacts the male die 81 under the action of the elastic restoring force of the first pressure spring 88, so that secondary impact on the metal plate is realized; in an initial state, a certain distance is reserved between the U-shaped plate 94 and the control switch 9a, and the first electromagnet 96 is normally electrified, so that the movable plate 93 is adsorbed and fixed by the first electromagnet 96; when mounting panel 7 moves to the below, U template 94 extrusion control switch 9a for first electro-magnet 96 cuts off the power supply, and fly leaf 93 no longer is adsorbed by first electro-magnet 96, makes fly leaf 93 for U template 94 upward movement, realizes mounting panel 7 and promotes in a delayed manner, and then realizes promoting in a delayed manner terrace die 81, when avoiding assaulting the metal sheet secondary, terrace die 81 has promoted the top, guarantees when assaulting the metal sheet secondary, and motor 64 need not shut down.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A press apparatus for processing a metal plate, comprising:
the device comprises a base (4), wherein a top plate (1) is arranged above the base (4), and the top plate (1) is fixedly connected with the base (4) through two mutually symmetrical upright posts (3);
the mounting plate (7) is connected with one of the upright columns (3) in a sliding manner, and the mounting plate (7) is positioned between the two upright columns (3);
it is characterized by also comprising:
the female die mechanism (5), the female die mechanism (5) is connected with the base (4), and the female die mechanism (5) is positioned between the two upright posts (3);
the connecting mechanism (9), the said connecting mechanism (9) is connected with upper surface of the mounting plate (7);
the turntable mechanism (6), the turntable mechanism (6) is connected with the top plate (1), and the output end of the turntable mechanism (6) is connected with the connecting mechanism (9);
the male die mechanism (8), the male die mechanism (8) is connected with the lower surface of the mounting plate (7), and the male die mechanism (8) is positioned right above the female die mechanism (5); the male die mechanism (8) comprises a male die (81), the lower surface of the mounting plate (7) is fixedly connected with the male die (81), a mounting groove is formed in the male die (81), and a strip-shaped opening (82) communicated with the mounting groove is formed in the side surface of the male die (81); an impact block (86) is connected in the mounting groove in a sliding mode, the upper surface of the impact block (86) is connected with the inner wall of the upper end of the mounting groove through a first pressure spring (88), and a slot (87) is formed in the surface, opposite to the strip-shaped opening (82), of the impact block (86); the upright post (3) opposite to the strip-shaped opening (82) is fixedly connected with a hydraulic cylinder (83), and the output end of the hydraulic cylinder (83) is fixedly connected with an inserted rod matched with the slot (87); two stroke switches (2) which are arranged up and down and are used for controlling the hydraulic cylinder (83) to stretch and retract are arranged on the upright post (3).
2. The stamping device for processing metal plates as claimed in claim 1, wherein the connecting mechanism (9) comprises a connecting column (95), the upper surface of the mounting plate (7) is fixedly connected with the lower end of the connecting column (95), and the upper end of the connecting column (95) is fixedly connected with a U-shaped plate (94) with an upward opening; a movable plate (93) used for plugging an opening at the upper end of the U-shaped plate (94) is arranged above the U-shaped plate (94), and a first electromagnet (96) used for adsorbing the movable plate (93) is arranged on the upper surface of a vertical section in the U-shaped plate (94); the outer surface of the vertical section in the U-shaped plate (94) is fixedly connected with a limiting column (97), and the limiting column (97) penetrates through the movable plate (93) and is connected with the movable plate (93) in a sliding manner; the upper end of the limiting column (97) is fixedly connected with a fixed plate (91), and the fixed plate (91) is elastically connected with a movable plate (93) through a spring (92); one of the upright posts (3) is provided with a control switch (9 a) for controlling the magnetism of the first electromagnet (96).
3. The stamping device for processing metal plates as recited in claim 2, wherein the turntable mechanism (6) comprises a motor (64), the lower surface of the top plate (1) is connected with the motor (64) through a connecting plate (63), and the output end of the motor (64) is fixedly connected with the rotation center of the turntable (61); the face of carousel (61) and motor (64) the back of the body face fixedly connected with lug (62), lug (62) are close to the edge setting of carousel (61), and lug (62) insert establish by U template (94) and fly leaf (93) constitute in the motion frame.
4. The stamping device for processing the metal plate as recited in claim 1, wherein the punch mechanism (8) further comprises a second electromagnet (84), the second electromagnet (84) which is annular and used for adsorbing the impact block (86) is fixedly connected in the mounting groove, and the second electromagnet (84) is positioned above the impact block (86); the upper surface of the impact block (86) is fixedly connected with a permanent magnet (85).
5. The stamping device for sheet metal processing according to claim 4, wherein the punch mechanism (8) further comprises a ball (89), the outer surface of the insert rod is provided with a plurality of evenly distributed balls (89), and the insertion groove (87) is of a flaring structure.
6. The stamping device for processing the metal plate as recited in claim 5, wherein the die mechanism (5) comprises a die (52), the die (52) with an upward opening and matching with the punch (81) is arranged above the base (4), the die (52) is positioned under the punch (81), and the die (52) is elastically connected with the base (4) through a plate spring (55).
7. The stamping device for processing the metal plate as claimed in claim 6, wherein the die mechanism (5) further comprises an extrusion plate (53), the die (52) is connected with the two extrusion plates (53) in a sliding manner, the two extrusion plates (53) are connected with the inner wall of the die (52) through second compression springs (51), the opposite surfaces of the two extrusion plates (53) are connected with the inner wall of the die (52), the tops of the two extrusion plates (53) are connected with rollers (54) in a rotating manner, and when the male die (81) enters the die (52), the rollers (54) are pushed to move through the male die (81).
8. A press method of a press apparatus for processing a metal plate, comprising the press apparatus for processing a metal plate according to claim 7, characterized by comprising the steps of:
a. a metal plate to be stamped is placed above the female die (52), and is restrained and fixed through an external clamping piece;
b. the motor (64) works to enable the lug (62) to rotate, the lug (62) pushes a moving frame consisting of the movable plate (93) and the U-shaped plate (94), and the mounting plate (7) moves in the vertical direction under the action of the connecting column (95); when the mounting plate (7) moves downwards, the male die (81) is driven to synchronously move downwards, so that the male die (81) enters the female die (52), and the metal plate is punched through the female die (52) and the male die (81); the insert rod is inserted into the insert groove (87), so that when the punch (81) moves downwards, the impact block (86) is restrained, the impact block (86) moves relative to the punch (81), and the first pressure spring (88) is pressed at the moment, so that a gap is generated between the lower surface of the impact block (86) and the inner bottom wall of the punch (81);
c. when the mounting plate (7) moves to the lowest part, at the moment, the hydraulic cylinder (83) is contracted through the control switch (9 a), the insert rod slides out of the slot (87), and the impact block (86) impacts the male die (81) under the action of the elastic restoring force of the first pressure spring (88), so that secondary impact on the metal plate is realized; in an initial state, a certain distance is reserved between the U-shaped plate (94) and the control switch (9 a), and the first electromagnet (96) is normally electrified, so that the movable plate (93) is adsorbed and fixed by the first electromagnet (96); when mounting panel (7) moved the below, U template (94) extrusion control switch (9 a), make first electro-magnet (96) outage, fly leaf (93) no longer are adsorbed by first electro-magnet (96), make fly leaf (93) for U template (94) upward movement, realize mounting panel (7) and delay the promotion, and then realize the delay promotion to terrace die (81), when avoiding assaulting the metal sheet secondary, terrace die (81) have promoted the top, guarantee when assaulting the metal sheet secondary, motor (64) need not shut down.
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